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Finding the Fourth Proportional to 719,798.28, 1,080,361.71 and 365,061.48

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Solution

The fourth proportional to 719,798.28, 1,080,361.71 and 365,061.48 is: 547,929.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,798.28 : 1,080,361.71 = 365,061.48 : x
  2. Step 2: Convert to fraction form
    719,798.28/1,080,361.71 = 365,061.48/x
  3. Step 3: Cross multiply
    719,798.28x = 1,080,361.71 × 365,061.48
  4. Step 4: Simplify right side
    719,798.28x = 394,398,444,787.93
  5. Step 5: Solve for x
    x = 394,398,444,787.93/719,798.28
  6. Step 6: Final answer
    x = 547,929.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.